Universal joint for transmission-gears.



IPATENT-HD DEC. 25,1906.

- J. SPYKER. I UNIVERSAL JOINT FOR TRANSMISSION GEARS. 4

APPLICATION FILED DEC. 8, 1905.

. the power in JAOQBUS sPYKna'or Tact-treasures, NEAR AMSTERDAM,NETHERLANDS.

UNIVERSAL, JOINT Foe-TRANSmission-Gaines.

Specification of Letters Patent.

Patented Dec. 25, 1906.

Application tiled December 8,1905. Serial No. 290,946.

To all whom it may concern.-

Be it known that I, JACOBUS SPYK R, subject of the Queen of theNetherlands, residing at Trornpenburg, Netherlands, have invented. newandusei'ul Improvements in Universal Joints for Tran smission-Gears, ofwhich the following is a specification.

The present invention relates to a means of connecting the mechanism ofchangespeed gearwith one or more motor-axles of automobiles.

The arrangement hereinafter described has been specially designed forthe transmission of power from the change-speed gear on two sides tomotor-axles front and rear.

The invention. essentially consists in inter calatingin the axis oftransmission of the motor-axles universal joints and supports withuniversal joints and in arranging the forks of the universal jointswhich transmit such a manner, as to be'inde pendent of the moving axlesand to be main tained by springs in the center of the sphere of theuniversal joint, so that-the axles sliding in connection with the forkscan recede with regard to the universal joint or can approach oneanother without the claws of this latter changing their position.

In order that this invention may be the better understood, I Will nowproceed to describe the same with reference to the drawings annexedhereto and to the letters marked thereon. I

The drawings hereunto annexed represent one form of carrying out thissystem of connection.

Figure I is a longitudinal section through one half of the changespeedgear and the transmission-gear going to the motor-axles.

Fig. 2 is a longitudinal sectional view through the other half of thetransmission gear, the saidhalf joining with the half shown in Fig. 1,as at the dotted vertical lines. Fig. 3 is a longitudinal sectionthrough the universal joint of the transmissiomgear, and Fig. 4 is atransverse section of the sphere of the same.

The change-speed gear is inclosed within a box '0 of aluminium, which isformed in a single piece without joints to prevent the escape of oiltherefrom. In this box-are arranged the shafts for the change-speedgear. (Not shown in the drawings.) These shafts engage with gear-wheelsof difi'erent diameterswith' a third shaft at, having a differentialgear (Z upon'it, if desired. T hislatter shaft a transnear Amsterdam,

mits the force toward two sidesi. e., to the a l two motor-axles p p atthe back and front.

' not displace itself. cording to the To eilectthis, each of the twoextremities of the axle a terminate with a claw g, which the circularforkj'is adapted to engage in a rectangular groove 1'" in a sphere 8,conccntrlc with the center 0 of the fork The sphere s has a second.rectangular groove t perpendicular to the first, which engages a secondclaw h oi. similar form to the first.

The second claw h is provided with a neck e, which has a square hole toreceive the end a l of the pinion-shaft k. The claw ought to bemaintained-in place in the middle of the so that the center ofarticulation does To obtain this result, acpresent invention a strongspring q is arranged, acting either way in the doublesense. under themovement produced from the springs of the carriage. It maintains thesphere claw in place continuously and sets up at the" same time acontinuous lubrication for the effective operation of all the parts.with these two means of transmissions has two tubes Z,with the exteriorof zonar form, so as to provide an exterior support having the samecenter 0 as the interior articulation.

These tubes Z, with the exterior spherical pdrtion j, constitute asupport for a tube-m, which forms a dust prootcover and at the same timea grease-box. The interior part of the tube m, of tempered steel, liesupon the exterior spherical part j-of the tube Z in such v a manner thatwhatever may be the displacement of the axle p, and in consequence ofthe; tube-support n, the axis of the shaft It always passes through thecenter 0.

By reason of the before-described arrangaps merits the force set up bythe displacement of the parts acts entirclyu on the two non-turningparts 1- and m, and t ere is no other force or shock transmitted to theaxles which transmit the force of the motor. q ucnce there is no loss ofenergy, and, further, the lubrication is assured in a perfect conditionand all the mechanism of transmission is absolutely protected from thedust.

I Having now described my invention, I; claim, and desire to secure byLetters Patent, isl. In a universal joint for transmissiongoars, atransmitting mechanism interposed between the power and the drivenshaft, "a no With 60 This spring comes into action 7 5 The box 80 As aconse-rco what reg means for connecting the poWer-transinissionuniversal oint with the axle it drives, adapted to permit a slidingmotion between the two.

v 2.v In a universal joint for power-transmissions, a transmittingmechanism disposed between the (lrivin and driven parts, a universaljoint intercalated in the transmissirm mechanism, a support for thetransmitting mechanism having a universal joint, means for connectingthe power-transmitting universsl joint with the axle it drives, agreaseeasing for the transmitting mechanism apart from the casingcontaining the speed-gear, the ssid easing consisting of a tube having azonary external surface, a tube having a surface formed, and adapted tomovalily eoac t with the said internal tube, the zenar v surface beingconcentric With the power trnns initting universal joint.

3. Means for conneetii'ig the change-speed parts, a spiral spring:ninngm! to maintain the parts in proper position and at the same timeto distribute a lubricant contained in the nising of the universaljoint.

in tesiin'ion whereof .li have signed my name to this specification inthe presence of two sn bserihing wit nessos.

URN

